Are you planning on keeping them out until midnight? If not, you can always take them to the Wildlights Festival at The Living Desert or the Palm Springs Aerial Tramway. I do not think the tramway has any special New Year's Eve events, but it is open and the last tram comes back down just before 10pm. Another idea is to go to a restaurant with a fun atmoshere. Here are a few suggestions - if interested, contact them to see if they have anything special planned for NY's Eve which would be good for teenagers: Johnny Costa's (760.325.4556), Las Casuelas Terraza (760) 325-2794 or El Mirasol (760) 323-0721.